Daily life increasingly depends on systems of satellites orbiting Earth. As fleets proliferate, ever greater numbers of expired units will hurtle back toward the surface. Decommissioned satellites ...

Hot air holds more moisture. That’s why you can blow your hair dry even after a steamy shower. It’s also what dumps rain in the tropics and sucks water from desert soils. A new study, published in ...

Researchers have created a dataset of the whole atmosphere, enabling new research to be conducted on previously difficult-to-study regions. Using a new data-assimilation system called JAGUAR-DAS, ...

BOSTON - If you're wondering why it smelled like smoke from northeastern Massachusetts all the way down to the Boston area Monday, it was the brush fires in Salem and something known as an "inversion.

Unlike Earth’s life-sustaining blanket of air, the Moon has but a thin wisp of an atmosphere. Now, a new study using samples retrieved by the Apollo missions more than 50 years ago is helping ...

Between 30 and 60 miles above Earth’s surface lies a largely unstudied stretch of the atmosphere. It’s too high for airplanes and weather balloons, too low for satellites and nearly impossible to ...